Thanks guys, to give you some background, I'm actually trying to help my friend in boston do this (I'm in cali), I have some experiance with this, he has none, and like most newbies hes afraid of screwing up his phone while trying to jailbreak it.
Being 3.1.3 I was thinking he could use the oldschool jailbreakme.com method, but then I realized its not available anymore. The reason that I want to leave 3.1.3 is to make the process as simple as possible for him, if I start trying to explain how to make custom firmwares and update FW without baseband and etc, this guys head is gonna explode lol.
But if thats the only way, then thats what I'll do. Thanks for the help guys, much appreciated.